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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
What factors cause too high pressure ?
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<blockquote data-quote="Frog4aday" data-source="post: 2837369" data-attributes="member: 9308"><p>Bullet too deep in the case = increased pressure; farther out can lower pressure until you start jamming into the lands...then pressure goes UP again. Think of bullet depth in the case as a three bears situation. That's too deep (bad). That's too far out (bad). That's somewhere in between ("just right!") = good.</p><p></p><p>#4 in your second list (<em><span style="font-size: 18px">"Are the following things not really causes of overpressure? 4. Below "minimum" powder loads"</span></em>) should be #6 in your first list - Too <strong>little </strong>powder (below minimum listed in manual) <strong>can be DANGEROUS</strong>. Win296/H110 powder specifically comes to mind, but there are others. These powders do not do well below a certain minimum and pressures can skyrocket ('detonation'}. Follow the reloading books and you'll stay safe. Start getting "creative" and you can get in trouble. And at 70,000+psi, that can be an 'explosive' education that takes eyes, limbs, and perhaps a life. Not worth the risk. Don't be creative. Be smart. You are asking questions; that's smart!</p></blockquote><p></p>
[QUOTE="Frog4aday, post: 2837369, member: 9308"] Bullet too deep in the case = increased pressure; farther out can lower pressure until you start jamming into the lands...then pressure goes UP again. Think of bullet depth in the case as a three bears situation. That's too deep (bad). That's too far out (bad). That's somewhere in between ("just right!") = good. #4 in your second list ([I][SIZE=5]"Are the following things not really causes of overpressure? 4. Below "minimum" powder loads"[/SIZE][/I]) should be #6 in your first list - Too [B]little [/B]powder (below minimum listed in manual) [B]can be DANGEROUS[/B]. Win296/H110 powder specifically comes to mind, but there are others. These powders do not do well below a certain minimum and pressures can skyrocket ('detonation'}. Follow the reloading books and you'll stay safe. Start getting "creative" and you can get in trouble. And at 70,000+psi, that can be an 'explosive' education that takes eyes, limbs, and perhaps a life. Not worth the risk. Don't be creative. Be smart. You are asking questions; that's smart! [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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What factors cause too high pressure ?
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